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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>显示隐藏之visibility</title>
</head>

<body>
    <li>visibility: visble; 元素可视</li>
    <li>visibility: hidden; 元素隐藏</li>
    <li>visibility隐藏元素后，继续占有原来的位置</li>
</body>

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